body{
				background-color: #ebe8e1;
			}
			*{
				padding: 0px;
				margin: 0px;
			}
			#container{
				width: 1200px;
				margin: 0px auto; 
				border: 1px solid #ccc;
				background-image: url(../img/bg.jpg);
				
			}
			/* 页头样式 */
			.top_head{
				background-color: #333333;
				height: 100px;
				color: #fff;	
				line-height: 100px;
				padding-left: 150px;
			}
			
			.top_nav{
				width: 1200px;
				margin: 0px auto;
				height:150px ;
				position: absolute;
				z-index:999
			}
			.top_nav ul{
				list-style: none;
			}
			.top_nav>ul>li{
				background-color: #232323;
				line-height: 60px;
				float: left;
				margin: 0px;
			}
			.top_nav>ul>li>ul{
				display: none;
			}
			.top_nav>ul>li:hover{
				color: #fff;
				border-bottom: 5px solid #FF8726;
			}
			.top_nav>ul>li:hover ul{
				color: #FF8726;
				display: block;
				padding: 0px;
			}
			#ul_1>li:hover{
				background-color: #FF8726 ;
			}
			#ul_1>li>a:hover{
				color: #FFFFFF;
			}
			.top_nav a{
				text-decoration: none;
				padding: 10px 50px;
				color: #fff;
			}
			.top_nav a:hover{
				color: #ff8726;
			}
			#li_1{
				margin-left:100px ;
			}
			#top_nav1{
				height: 60px;
				background-color: #232323;
				position: static;
			}
			
			/* 页脚样式 */
			footer{ 
				font-size:16px; 
				background-color:#333333; 
				color:#FFF; 
				padding:20px 0px;
				width: 1200px;
				margin: 0px auto;
			}